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The Synergism of DMSO and Diethyl Ether for Highly Reproducible and Efficient MA0.5FA0.5PbI3 Perovskite Solar Cells
Advanced Energy Materials ( IF 24.4 ) Pub Date : 2020-06-25 , DOI: 10.1002/aenm.202001300 Yi Zhang 1 , Min Chen 2 , Yuanyuan Zhou 2 , Wenhao Li 2 , Yonghui Lee 1 , Hiroyuki Kanda 1 , Xiao‐Xin Gao 1 , Ruiyuan Hu 1 , Keith Gregory Brooks 1 , Rashid Zia 2 , Sachin Kinge 3 , Nitin P. Padture 2 , Mohammad Khaja Nazeeruddin 1
Advanced Energy Materials ( IF 24.4 ) Pub Date : 2020-06-25 , DOI: 10.1002/aenm.202001300 Yi Zhang 1 , Min Chen 2 , Yuanyuan Zhou 2 , Wenhao Li 2 , Yonghui Lee 1 , Hiroyuki Kanda 1 , Xiao‐Xin Gao 1 , Ruiyuan Hu 1 , Keith Gregory Brooks 1 , Rashid Zia 2 , Sachin Kinge 3 , Nitin P. Padture 2 , Mohammad Khaja Nazeeruddin 1
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Composition and film quality of perovskite are crucial for the further improvement of perovskite solar cells (PSCs), including efficiency, reproducibility, and stability. Here, it is demonstrated that by simply mixing 50% of formamidinium (FA+) into methylammonium lead iodide (MAPbI3), a highly crystalline, stable phase, and compact, polycrystalline grain morphology perovskite is formed by using a solvent‐mediated phase transformation process via the synergism of dimethyl sulfoxide and diethyl ether, which shows long carrier lifetime, low trap state density, and a record certified 21.8% power conversion efficiency (PCE) in pure‐iodide, alkaline‐metal‐free MA0.5FA0.5PbI3 perovskite‐based PSCs. These PSCs show very high operational stability, with 85% PCE retention upon 1000 h 1 Sun intensity illumination. A 17.33% PCE module (6.5 × 7 cm2) is also demonstrated, attesting to the scalability of such devices.
中文翻译：
DMSO与二乙醚的协同作用，可高效高效再现MA0.5FA0.5PbI3钙钛矿型太阳能电池
钙钛矿的组成和薄膜质量对于钙钛矿太阳能电池（PSC）的进一步改进，包括效率，可重复性和稳定性至关重要。在此证明，通过将50％的甲ami （FA +）混入甲基铵碘化铅（MAPbI 3）中，可以通过使用溶剂介导的相变形成高结晶，稳定的相和致密的多晶钙钛矿晶粒形态通过二甲亚砜和乙醚的协同作用，可显示出较长的载流子寿命，低的陷阱态密度以及经记录的经认证的纯碘化物，无碱金属的MA 0.5 FA 0.5 PbI 3的21.8％功率转换效率（PCE）基于钙钛矿的PSC。这些PSC显示出非常高的操作稳定性，在1000 h 1的日照强度下，PCE保留率为85％。还演示了17.33％的PCE模块（6.5×7 cm 2），证明了此类设备的可扩展性。
更新日期：2020-08-04
中文翻译：
DMSO与二乙醚的协同作用，可高效高效再现MA0.5FA0.5PbI3钙钛矿型太阳能电池
钙钛矿的组成和薄膜质量对于钙钛矿太阳能电池（PSC）的进一步改进，包括效率，可重复性和稳定性至关重要。在此证明，通过将50％的甲ami （FA +）混入甲基铵碘化铅（MAPbI 3）中，可以通过使用溶剂介导的相变形成高结晶，稳定的相和致密的多晶钙钛矿晶粒形态通过二甲亚砜和乙醚的协同作用，可显示出较长的载流子寿命，低的陷阱态密度以及经记录的经认证的纯碘化物，无碱金属的MA 0.5 FA 0.5 PbI 3的21.8％功率转换效率（PCE）基于钙钛矿的PSC。这些PSC显示出非常高的操作稳定性，在1000 h 1的日照强度下，PCE保留率为85％。还演示了17.33％的PCE模块（6.5×7 cm 2），证明了此类设备的可扩展性。
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